Earl Henry "Red" Blaik (February 15, 1897 – May 6, 1989) was an American football player, coach, college athletics administrator, and United States Army officer.

Army had suffered two consecutive losing seasons in 1939 and 1940, a first since 1906, and dropped its requirements for its coach to be a serving graduate and that all players meet restrictive height-to-weight limitations.

The latter was a condition Blaik made as a requirement for him to accept the position, believing Army to be severely handicapped in the size of its linemen.

The United States Naval Academy did not have the same restrictions and the Army surgeon general was persuaded to drop the requirement for football players.

[4] During his tenure at West Point, Blaik coached three Heisman Trophy winners, Doc Blanchard in 1945, Glenn Davis in 1946 and Pete Dawkins in 1958, as well as a total of 11 Hall of Fame players.

Twenty of his former assistant coaches became head coaches: Paul Amen, George Blackburn, Chief Boston, Eddie Crowder, Paul Dietzel, Bobby Dobbs, Sid Gillman, Jack Green, Andy Gustafson, Dale Hall, Tom Harp, Herman Hickman, Stu Holcomb, Frank Lauterbur, Vince Lombardi, John Sauer, Richard Voris, Murray Warmath, Bob Woodruff, and Bill Yeoman.

Lombardi, as head coach of the Green Bay Packers, won five NFL titles and the first two Super Bowls.

Blaik resigned as head football coach of Army on January 13, 1959, to become a vice president at the Avco Corporation.